Three-Dimensional Printing from Images

2. The method of claim 1, wherein receiving the multi-dimensional image of the structure comprises segmenting, from the multi-dimensional image, a portion of the multi-dimensional image depicting the structure.

3. The method of claim 1, wherein receiving the multi-dimensional image of the structure comprises resampling the multi-dimensional image to a resolution compatible with a 3D printer.

4. The method of claim 1, wherein 3D printing the physical model comprises using at least one 3D printing extruder.

5. The method of claim 4, wherein converting voxels of each 2D slice into 3D printing instructions comprises specifying, for the 3D printing extruder, an extrusion direction or extrusion angle or both for the 2D slice.

6. The method of claim 4, wherein converting voxels of each 2D slice into 3D printing instructions comprises specifying, for the 3D printing extruder, an extrusion speed or extrusion temperature or both for each print segment of a plurality of print segments.

7. The method of claim 1, wherein 3D printing the physical model comprises controlling a plurality of extruders to each cover a respective portion of each 2D slice using a respective material for the portion.

8. The method of claim 1, wherein 3D printing the physical model comprises altering, while printing at least one segment of at least one 2D slice, one or more of: speed, density, porosity, adhesion, and gap distance between print locations.

10. The system of claim 9, wherein receiving the multi-dimensional image of the structure comprises segmenting, from the multi-dimensional image, a portion of the multi-dimensional image depicting the structure.

11. The system of claim 9, wherein receiving the multi-dimensional image of the structure comprises resampling the multi-dimensional image to a resolution compatible with a 3D printer.

12. The system of claim 9, wherein 3D printing the physical model comprises using at least one 3D printing extruder.

13. The system of claim 12, wherein converting voxels of each 2D slice into 3D printing instructions comprises specifying, for the 3D printing extruder, an extrusion direction or extrusion angle or both for the 2D slice.

14. The system of claim 12, wherein converting voxels of each 2D slice into 3D printing instructions comprises specifying, for the 3D printing extruder, an extrusion speed or extrusion temperature or both for each print segment of a plurality of print segments.

15. The system of claim 9, wherein 3D printing the physical model comprises controlling a plurality of extruders to each cover a respective portion of each 2D slice using a respective material for the portion.

16. The system of claim 9, wherein 3D printing the physical model comprises altering, while printing at least one segment of at least one 2D slice, one or more of: speed, density, porosity, adhesion, and gap distance between print locations.